Results 41 to 50 of about 2,498 (190)

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications on Pure and Applied Mathematics, EarlyView.
Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley   +1 more source

Pullback attractor for a dynamic boundary non-autonomous problem with Infinite delay [PDF]

open access: yes, 2018
In this work we prove the existence of solution for a p-Laplacian non-autonomous problem with dynamic boundary and infinite delay. We ensure the existence of pullback attractor for the multivalued process associated to the non-autonomous problem we are ...
Caraballo Garrido, Tomás   +1 more
core  

Lower semicontinuity of attractors for non-autonomous dynamical systems [PDF]

open access: yes, 2009
This paper is concerned with the lower semicontinuity of attractors for semilinear non-autonomous differential equations in Banach spaces. We require the unperturbed attractor to be given as the union of unstable manifolds of time-dependent hyperbolic
Abreu   +9 more
core   +1 more source

Pre‐IPO Tokens: Trading in the Dark

open access: yesAccounting Perspectives, EarlyView.
ABSTRACT Pre‐IPO tokens offer a new way for individual investors to access the private equity markets. However, without access to the private firm or to regulated public disclosures, token traders operate under extreme information asymmetry. This paper examines the behavior of the pre‐IPO token market around private funding events, such as venture ...
Johnathon Cziffra, Margaret Fong
wiley   +1 more source

Asylum as Artifice: Race, Law and Capital as Regimes of Abstraction in the United Kingdom's Asylum Accommodation System

open access: yesTransactions of the Institute of British Geographers, EarlyView.
ABSTRACT Taking as its case study the category of the ‘asylum seeker’ in UK law, this paper develops on latent concerns in legal geographies with processes of abstraction. Following Bhandar and Toscano, race, law and capital are here understood as different, co‐articulating modalities of abstraction, through which the ‘asylum seeker’ is constituted and
Anna Pearce
wiley   +1 more source

Random Attractors for Stochastic Retarded 2D-Navier-Stokes Equations with Additive Noise

open access: yesJournal of Function Spaces, 2018
In this paper, the existence and the upper semicontinuity of a pullback attractor for stochastic retarded 2D-Navier-Stokes equation on a bounded domain are obtained.
Xiaoyao Jia, Xiaoquan Ding
doaj   +1 more source

H 2 $H^{2}$ -boundedness of the pullback attractor of the micropolar fluid flows with infinite delays

open access: yesBoundary Value Problems, 2017
We establish the H 2 $H^{2}$ -boundedness of the pullback attractor for a two-dimensional nonautonomous micropolar fluid flow with infinite delays.
Gang Zhou, Guowei Liu, Wenlong Sun
doaj   +1 more source

Robustness of time-dependent attractors in H1-norm for nonlocal problems [PDF]

open access: yes, 2018
In this paper, the existence of regular pullback attractors as well as their upper semicontinuous behaviour in H1-norm are analysed for a parameterized family of non-autonomous nonlocal reaction-diffusion equations without uniqueness, improving previous ...
Caraballo Garrido, Tomás   +2 more
core   +1 more source

Equivariant toric geometry and Euler–Maclaurin formulae

open access: yesCommunications on Pure and Applied Mathematics, Volume 79, Issue 3, Page 451-557, March 2026.
Abstract We first investigate torus‐equivariant motivic characteristic classes of toric varieties, and then apply them via the equivariant Riemann–Roch formalism to prove very general Euler–Maclaurin‐type formulae for full‐dimensional simple lattice polytopes.
Sylvain E. Cappell   +3 more
wiley   +1 more source

Pullback attractor of a non-autonomous order-2γ parabolic equation for an epitaxial thin film growth model

open access: yesBoundary Value Problems, 2020
The non-autonomous order-2γ parabolic partial differential equation for an epitaxial thin film growth model with dimension d = 3 $d=3$ is investigated by the method of uniform estimates.
Xiaojie Yang, Hui Liu, Chengfeng Sun
doaj   +1 more source

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